NOTE: Do not expect instant results. Usually, continuous usage for 7 to 14 days is needed before effective at gopher control or other rodent control. Initially, the Mole Chaser can cause increased pest activity. Initially, the pests mistake currents as food source and leave when they realize the currents are not food. Make sure earth is firmly packed around each stake. Do not pound into ground: loosen or wet soil and push into ground. Then pack soil tightly around each unit.